HCID 21416630, compound → HCID 21416629, compound

Participants

Reaction Steps

The procedure described in Example 3b was repeated using 4-chloro-6-ethyl-1-methyl-3-(5-nitro-2-furyl)-1H-pyrazolo[3,4-d]pyrimidine as starting material instead of 4-chloro-1-methyl-3-(5-nitro-2-furyl)-1H-pyrazolo[3,4-d] pyrimidine, the reaction conditions being the same. The crystalline product was recrystallised from dimethyl formamide to give 4-amino-6-ethyl-1-methyl-3-(5-nitro-2-furyl)-1H-pyrazolo[3,4-d]pyrimidine, having decomposition point 294° C.

Provenance & Evidence